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https://issues.apache.org/jira/browse/ARROW-14481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17438231#comment-17438231
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Jonathan Keane commented on ARROW-14481:
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Oddly, it looks like these _have_ in fact reverted back to their previous
performance, here's a recent run:
https://conbench.ursa.dev/benchmarks/673597e52dd24e4e9c04ffcd8570ea99/ at 695
MiB/s (up from 611MiB/s before, and much closer to the ~710-720 MiB/s we were
seeing before).
> [C++] Investigate recent regressions in some utf8 kernel benchmarks
> -------------------------------------------------------------------
>
> Key: ARROW-14481
> URL: https://issues.apache.org/jira/browse/ARROW-14481
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: David Li
> Priority: Major
> Labels: kernel
>
> See [https://conbench.ursa.dev/benchmarks/6ccff6887e7c47148a09fe46f18c8688/]
> Some (on the surface) unrelated commits have caused performance for a few
> string kernels to plummet. We should try to replicate locally.
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